*SUPPORT*
IN: wif fep dax lug OUT: RED PINK PINK BLUE
IN: zup lug lug OUT: GREEN BLUE BLUE
IN: lug blicket lug OUT: BLUE BLUE BLUE
IN: zup lug blicket fep OUT: GREEN PINK BLUE BLUE
IN: wif wif dax wif OUT: RED RED RED RED
IN: lug lug OUT: BLUE BLUE
IN: fep lug blicket fep OUT: PINK PINK BLUE BLUE
IN: wif zup blicket zup OUT: RED GREEN GREEN GREEN
IN: fep blicket zup OUT: GREEN PINK PINK
IN: lug tufa OUT: BLUE BLUE
IN: zup zup fep fep blicket zup OUT: GREEN GREEN PINK GREEN PINK PINK
IN: wif wif tufa OUT: RED RED RED
IN: fep tufa OUT: PINK PINK
IN: lug OUT: BLUE

*QUERY*
IN: zup wif lug tufa OUT: GREEN RED BLUE BLUE
IN: fep dax fep OUT: PINK PINK PINK
IN: lug zup dax zup OUT: BLUE GREEN GREEN GREEN
IN: zup tufa OUT: GREEN GREEN
IN: fep OUT: PINK
IN: zup blicket lug OUT: BLUE GREEN GREEN
IN: zup OUT: GREEN
IN: zup lug OUT: GREEN BLUE
IN: zup blicket wif OUT: RED GREEN GREEN
IN: wif OUT: RED

*GRAMMAR*
zup -> GREEN 
 wif -> RED 
 lug -> BLUE 
 fep -> PINK 
 u1 dax u2 -> [u1] [u1] [u2] 
 u1 tufa -> [u1] [u1] 
 u1 blicket u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 